What are you talkin' about Geoffrey. If Nasa bought a 10" or 12" GS dob they's see the martians walkin' around up there. Wouldn't need no fancy rover!!!
Well not quite, but if you want to see the red spot (Unfortunately it's more orangy yellow now rather than red.) on Jupiter along with the coloured bands around the planet, then yep you'll see them alright. Plus through a good eyepiece Saturn and Mars are pretty impressive. The standard phrase when first seeing Saturn goes something like this.
"OH MY GOD!!! That is unbelieveable" Or something along those lines.
But apart from the planets Geoff has it pegged. Not much colour out there, but that doesn't take anything away from the fantastic views.